Răspuns:
When you are in a library you must be quiet.
When you are in a library you mustn't eat.
When you are on an airplane you must have your seat belts on.
When you are on an airplane you mustn't smoke.
Before you leave the country you must get your passport done.
Before you leave the country you mustn't leave your pets alone.
When you take a test you must be prepared
When you take a test you mustn't be scared.
When your father drives he must pay attention.
When your father drives he mustn't use the phone.
When you and your friends eat at a restaurant, you must be polite.
When you and your friends eat at a restaurant, you mustn't be too loud.
When your sister shops online, she must ask your parents first.
When your sister shops online, she mustn't buy too many things at once.
